Not that there is any life or people visiting this newsgroup, but check out Beaton GH (1982) What do we think we are estimating. Proceedings of the symposium on dietary data collection.
For an affirmative answer.. all that should happen on single serum draws is the the distribution will be flatter and wider than actual. But, the mean of the distribution is very accurate given a large sample. This is kind of obvious: less people will hit the mean, and more will be abnormally high or low in the serum value. I'm sure the same applies to behavioral sciences.. . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
